Header drive mechanism



M ay 26, 1925.

G. H. HARRIS HEADER DRIVE MECHANISM Filedv July 9, 1925 llxllls il INVEN TOR.

ellms BY 'Q .xbm

i TORNEY l El G Patented May 26, 19255..

NITE@ SKfrfiif GEORGE H. HAR/Ri,

.earner STC'KTON, GALEFORNIA.

HEADER '.DRVE MECHANI'SM.

Application filed Tilly a,

To LZ-Z 'Lo/'rom t may concern.'

Be it known that l, Grenen H. Hansis, a citizen of the United States,residing at Stockton, county of San Joaquin, State of California, haveinvened certain new and useful improvements in Header Drivellzlcchanism; and l do declare the following` to a full, clear, andexact description of the same, reference being had to the accompanyingdrawings, and to the characters of reference marked thereon, which forma part of this application.

This invention relates to improvements in the driving mechanism betweena thresher and its header by means of which the various parts of thelatter are driven, and particularly to the drive mechanisms of side-hillharvesters; my principal objects being to arrange the mechanism for thepurpose in such a manner that a single chain drive from the thresher, inplace of the usual pitman drive will serve in connection with suitablemeans on the header; to operate all the parts on the header, thesevbeing the main and spout diapers, the cutter bar, and the reel, toproviderfor the efficient working of this chain drive irrespective ofthe transverse angles of setting of the header relative to thethre'slier,l and last but by no 'means least, to enable the usual gearbox, by means of the gears in which the drive is changed from onedirection to another, as is necessary, to be mounted on the thresherinstead of on the header.

This feature is one of importance. These gear boxes are theoreticallyoil-tight, but in practice are not. The result is that if the gear boxis mounted on the header, and'oil is placed thereinlto have a normallevel lower than the box split-line or the shaft bearings, when theheader is set at an angle and operating on a side hill, the relativelevel of the oil is changed, and it escapes from the box. In a veryshort time, the box is practically empty, and the gears run dry with theconsequent rapid wear and deterioration of the gears and shaft bearings.

By mounting the gear box on the thresher, this trouble is avoided, sincethe thresher is always maintained in a horizontal plane, regardless ofthe setting of the header.

The above objects I accomplish by means of such structure and relativearrangement of parts as will fully appear by a perusal of the followingspecification and claims.

1923, Serial No. 650,322.

reference indicate corresl'ionding is ,a view means which ln thedrawings similar characters 'of' parts in n l. is a fragmentary view` ofthe esher and header,

looking endwise of the improved drive mecha-- of that portion of the ismounted on the the side of the latter.

Referring now more particularly to the characters of reference on thedrawings, the

numeral l denotes in or side framework harvester, 2 the he general thelongitudinal ofthe threslier of the ader frame, and 3 the headerfeed-spout pivoted on the header frame, the ported on the rail 4. thethresher. drive shaft of the tend upper end of the spout being sup-v ofthe feed house 5 of 6 represents the usual main thresher mechanism,exing transversely through the thresher to the side froinwhich theheader projects.

My header drive chain drive 'l' from' 8 parallel thereto, s `naledin'the gear frame 1. gear box to the sh right angles to shaf mechanismcomprises a the shaft 6 to the shaft aid shaft 8 being jourbox 9 mountedon the Operatively connected inside the aft 8 is a'shaft 10 at t 8, orextending `longitudinally 'of the thresher and of course also parallelto the pivotal axis of thefeed spout, Mounted on the framework l abovethe shaft 8 and parallel to sh aft 10 is a countershaft 11, driven hy adirect chain drive 12 from shaft 10. Pivoted of shaft 11 and at at oneend on the end the other end on the header frame in axial alinement withthe pivotal connection of the feed spout there with is a connection bar13, which links the header to the thresher,

directly and enables the former to have vertical swinging movementrelative to the Mounted on the wheel 14 and a simi 15a on the header frpivotal conection header frame; a cha sprockets.

thresher.

shaft 1l is asprocket lar wheel l5 on a shaft ame concentric with the ofthe bar 13 with the in 16 passing over these Operatively connected tothe shaft l5*1 to be driven in connection with the sprocket l5 is achain drive 17 bar of the header,

to operate the cutteranother similar drive '18 to run the variousdrapers, and still another chain drive reel.`

19 to operate the header It will therefore be seen that I haveaccompli-shed in a simple manner the various objects of the invention.rl`he gear box is located on the thresher, where its level is constant;the common drive le to the'varions header mechanisms and its arrangementrelative to the connecting bar does away with the universally jointedstructure heretofore used for driving; and the header may be raised andlowered, or set at lan)7 angle relative to the thresher, withoutdisturbing in thev least the operation or e'liiciency of the drive. Y

TNhile this specification sets forth in detail the present and preferredconstruction of the device, still in practice such devi` ations fromsuch detail may be resorted to as do not form a departure from thespirit of the invention, as defined by the appended i claims.V

Having thus described my invention what I claim as new and nsefnl anddesire to secure by Letters Patent is:

l. In a harvester having a'thresher and a header projecting from oneside thereof, a connecting bar pivoted on the thresher and o'n theheader, a chain drive between the thresher and` header having sprocketwheels concentric with the pivotal connections of the bar, and drivingmeans for the header parts driven in common fr'oin the sprocket wheelVon the header.

2. Ina harvester having a thresher and a header 'projecting from oneside thereof, a connecting bar pivoted on the. thresher and on theheader, a shaft on the' header in' axial alinem'entwith the pivotalconnection of the bar therewith, drive means .for

the" header parts driven from said shaft, a sprocket wheel on the shaft,anotherl sprocket wheel on the thresher concentric with the pivotalconnection of the bar therewith, and a chain passing about saidsprockets.

3. In harvester having a and a header project-ing from one side thereof,a drive shaft on the thresher, a second shaft parallel thereto anddriven thereby, a third shaft at right angles to the second shaft andope 'atively connected thereto, a vcommon member in which said ysecondand third shafts are journaled and in which the Connecting means areenclosed, said member being mounted on the thresher, a fourth shaft`parallel to and driven by the third shaft, and a drive from said fourthshaft to the harvester., y Y

l. In a harvester having a thresher and a header projecting from oneside thereof, a shaft driven from the thresher, a second shaft at rightangles thereto yand driven thereby, both said shafts being mounted onthe thresher, and drive means to the header driven from the secondshaft.

5. In a harvester having a thresher and ak header projecting from oneside thereof, a pair of shafts journale'd' on the thresher, meansoperatively rconnecting the shafts in driving relation, means fordriving one of said shafts, and driven means running from the othershaft to the header to' operate the parts thereof.

6. In a harvester having a thresher and header projecting from one sidethereof, parallel shafts mounted on the thresher and headerrespectively, a connecting bar mounted on and extending between theshafts, the latter being connected in driving relation, drive means forthe header parts driven from the header-mounted shaft, and drive meansfor the thresher-mounted shaft.

In testimony whereof I aiiix my signature.

GEORGE H. HARRIS.

thresher s

